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Which types of igneous rocks are composed of at least 50 percent olivine?
Wiki User
∙ 9y ago
There are three intrusive igneous rocks that are composed of at least 50% olivine. These rocks are peridotite, kimberlite and dunite.
Wiki User
∙ 9y ago
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Is periodite a rock or a mineral?
I believe you mean peridotite, which is an igneous rock. Peridot, however, is a name applied to gem quality forsterite, which is a mineral.
A type of rock that is composed of only one mineral?
Limestonedunitequartziteand some others
What is the chemical composition of a basalt?
The mineralogy of basalt is characterized by a preponderance of calcic plagioclase feldspar and pyroxene. Olivine can also be a significant constituent.
What type of rock is an igneous rock?
Igneous rocks are usually classified first by their color index. The color index is separated into four categories. Felsic rocks are the lightest and are composed of mostly quartz and potassium feldspar. Intermediate rocks are the second lightest and are made up of mostly plagioclase feldspar, pyroxene, amphibole, and biotite. Mafic rocks are made up of plagioclase feldspar, pyroxene, and amphibole. Ultramafic is made up of mostly olivine, with pyroxene and amphibole.
What percent of air is in the exosphere?
At least 35 percent
Which igneous rock out of granite basalt andesite and peridotite has the lowest silica SiO2 content?
Peridotite, a type of ultramafic rock composed largely of the mineral olivine, has the least silica.
Is periodite a rock or a mineral?
I believe you mean peridotite, which is an igneous rock. Peridot, however, is a name applied to gem quality forsterite, which is a mineral.
What igneous rock or magma has the lowest silica content?
Peridotite, a type of ultramafic rock composed largely of the mineral olivine, has the least silica.Read more: Which_igneous_rock_out_of_granite_basalt_andesite_and_peridotite_has_the_lowest_silica_SiO2_content
Which of the igneous rock types has the lowest silica content?
Ultramafic igneous rock contains the least silica.
A type of rock that is composed of only one mineral?
Limestonedunitequartziteand some others
What is the chemical composition of a basalt?
The mineralogy of basalt is characterized by a preponderance of calcic plagioclase feldspar and pyroxene. Olivine can also be a significant constituent.
What type of rock is an igneous rock?
Igneous rocks are usually classified first by their color index. The color index is separated into four categories. Felsic rocks are the lightest and are composed of mostly quartz and potassium feldspar. Intermediate rocks are the second lightest and are made up of mostly plagioclase feldspar, pyroxene, amphibole, and biotite. Mafic rocks are made up of plagioclase feldspar, pyroxene, and amphibole. Ultramafic is made up of mostly olivine, with pyroxene and amphibole.
What is composed of at least one genus?
An organism
Are dark colored igneous rocks low in silicate minerals?
They are not low in silicate minerals. They are still primarily composed of them. However, the amount of silica in them is lower than in the lighter-colored rocks. The lightest igneous rocks (felsic) are at least 70% silica while the dark ones (mafic) are between 45% and 52% silica. Silica content below 45% is deemed ultramafic.
What is 89 percent 42 percent 91 percent and 27 percent from least to greatest?
From least to greatest is 27%, 42%, 89%, 91%
What is the order from least to greatest on 0.03 percent 78 percent and 21 percent?
least to greatest: 0.03%, 21%, 78%
What percent of air is in the exosphere?
At least 35 percent
